Essential LightWave 3D- P5

Essential LightWave 3D- P5: What you have in your hands is, quite simply,a collection of tools and techniques thatmany professional LightWave artists useevery single day doing what we do in ourvarious fields. The tools and techniquesexplored in this book are essential to creatingthe caliber of imagery that you see onfilm and television and in print and videogames.
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Essential LightWave 3D- P5Chapter 4 · · · · · · · · · · · · · · · · · · · · · · · ·e. We’ll save the organization for another time. For now, simply right-click on the light labeled Light (2). From the pop-up menu, choose Rename and change its name to Warm. Then right-click it again and use the Set Color option to change its Sketch Color (the color with which it is depicted in Layout) to Orange.f. After changing Light (2)’s name, the parenthetical after the first light went away; there weren’t two items of the same name for you to keep track of. Still, let’s change that light’s name to Cool and its Sketch Color to Blue.g. Bring up the Light Properties window Figure 4-20 if it’s not already open. For the light named Warm, change its Light Color to h. As shown in Figure 4-21, move Warm a soft, warm ochre (252, 218, 154) and to the right of the still life and up (in Y) change its Light Intensity to 42%. I’ve just a little. also set its Shadow Fuzziness to 24 to add a bit of visual variety and to give a Note bit of a visual cue to viewers that the The finished scene for this step is: Scenes lights on either side are not identical. Chapter_04StillLife_02_Spot_F.lws.Figure 4-21108· · · · · · · · · · · · · · · Layout 1: Foundation Material b. Area lights cast light away from their surface, so the larger the surface, the softer the shadows. I want the Warm light, the least intense of the two, to cast very soft shadows. With Warm selected, activate the Size tool under Modify | Transform | Size. In the numeric input panel (in the lower left of LightWave’s window), enter 2 m for all axes of the item’s scale. Give things a render. Figure 4-22: Rendering what we’ve got, the still life is beginning to show both depth and warmth. Step 5: Ray-Traced Soft Shadows What if you want things to look more realis- tic? (Figure 4-22 looks neat, but it still has a flavor of 3D-ish-ness to it.) LightWave gives you area and linear lights to have it figure out exactly what the shadows would look like when cast from a light that has some Figure 4-23: The light in this render behaves more surface area to it, like a fluorescent tube or like it does in the real world. a light with a diffusing screen in front of it. a. In the Light Properties window, set the Note Light Type of both your lights to Area Area and linear lights can have a “graini- Light. Because area lights tend to be a ness” to their shadows. You can reduce this lot brighter than other kinds of lights, by increasing the Linear/Area Light Quality change the Light Intensity for Cool to setting in the Light Properties window. You 50% and for Warm to 18%. Double- can enter values from 1 to 5, 1 being fast but not so good and 5 being slow but very check both lights to make sure Shadow polished. (The default value is 4.) Type is set to Ray Trace. You can also reduce the graininess of all shadows by activating Shading Noise Reduc- tion, accessible in the Global Illumination Note window. This adds a Shading Noise Reduc- Setting the Shadow Type to Ray Trace tells tion pass to every antialiasing pass of your the lights that you want them to calculate render. It does slow things down, but what it exact shadows. LightWave’s rendering does for the quality of the output is worth engine still needs to know that it needs to the wait in a final render. pay attention to Ray Trace Shadows. Be su ...